grafx - Extensible Java Graphics Package Code

Fixing the upper bound on LinearBowlMetric.

First stab at an accurate upper bound in LinearBowlMetric, not tested yet.

Saving some comments. I may write some sort of a mathematical proof soon.

Adding LinearBowlMetric.

Adding QuadraticNookAndCrannyMetric.

Adding LinearNookAndCrannyMetric.

Adding HeightFluctuationMetric.

Adding OverallHeightMetric and WellMetricUtils (classes).

judge() --> judgePit().

Adding interface net.blockout.impl.WellMetric.